$\omega$ Production in ${\pi }^{+}d\to \mathrm{pp}{\pi }^{+}{\pi }^{-}{\pi }^0$ at $6.95 \frac{\mathrm{GeV}}{c}$

We report on the analysis of the reaction ${\pi }^{+}n\to {\omega }^{0}p$ at $6.95 \frac{\mathrm{GeV}}{c}$. The absence of a dip in the differential cross section at $t\simeq -0.6\mathrm{} {\left(\frac{\mathrm{GeV}}{c}\right)}^2$ and the nonzero values for the ${\omega }^0$ spin-density matrix element ${\rho }_{00}$ for $\mathrm{}\left|t\right|<1.4\mathrm{} {\left(\frac{\mathrm{GeV}}{c}\right)}^2$ indicates that an unnatural-parity contribution to this process is still important at this energy. A simple Regge-pole model is found to represent the general form of the data.